* Fwd: Question about kernel and IPv6...
@ 2002-10-23 8:05 michael
2002-10-23 8:09 ` Pekka Savola
2002-10-23 11:29 ` Mauro Tortonesi
0 siblings, 2 replies; 3+ messages in thread
From: michael @ 2002-10-23 8:05 UTC (permalink / raw)
To: netdev
Alan Cox have recommended my to forward my questions to you, hope you will help
me!
Read the following:
----- Videresendt meddelelse fra michael@albog.dk -----
Dato: Wed, 23 Oct 2002 09:42:51 +0200
Fra: michael@albog.dk
Reply-To: michael@albog.dk
Emne: Question about kernel and IPv6...
Til: Alan Cox <alan@redhat.com>
To Alan Cox!
Hi Alan,
I am working on a master thesis called “Internet Protocol version 6”.
In the project I have to setup a test-network for analyzing the RIPng protocol
etc. I am using four normal Intel PC’s each running Debian Linux, with a custom
compiled kernel 2.4.19 downloaded from www.kernel.org. Two of the PC’s are
running as a software-based router (using Zebra 0.92a-6), and the other is
separately working as a client and server, respectively connect to router1 and
router2.
My problem is when I try to send an ICMPv6 request via the WAN-link (router1
and router2) from the client, I not getting any response from server. The
problem only appears when I try making a connection via the WAN-link, and not
from router1<->server and router2<->client.
My question is:
- Could a problem be due to a wrong kernel-configuration? (I can attach
the .config if you are interested).
- What "kernel mechanism" is responsible for routing/transporting data between
two interfaces? (I think that’s the problem in router1 and router2. Zebra is
only exchanging the "IPv6 kernel routing information" between router1 and
router2, and it is working fine).
- What kernel version have most IPv6 features build-in ?? (Maybe a feature is
missing in 2.4.19. I have read an article about patching the kernel:
http://project6.ferrara.linux.it/papers/best_ipv6_support_4_linux/best_ipv6_supp
ort_4_linux.html, it is necessary?).
I hope you understand what my main problem is – English is not my primary
language.
I have got many information from mailinglists, messagesboards and homepages,
but the main problem is, that those information is conflicting. That’s why I
writing to the Linux Guru him self.
Btw. You are doing a very good job with the Linux kernel!
Best regards,
Michael Olsen
Atkins Danmark A/S, Tele
Pilestræde 58
DK-1112 København K
Telefon: +45 8233 9154
Fax: +45 8233 9017
----- Slut af videresendt meddelelse -----
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Fwd: Question about kernel and IPv6...
2002-10-23 8:05 Fwd: Question about kernel and IPv6 michael
@ 2002-10-23 8:09 ` Pekka Savola
2002-10-23 11:29 ` Mauro Tortonesi
1 sibling, 0 replies; 3+ messages in thread
From: Pekka Savola @ 2002-10-23 8:09 UTC (permalink / raw)
To: michael; +Cc: netdev
Please try using 2000::/3 route instead of "default" route and see if that
helps.
You could also try to ensure you've enabled IPv6 forwarding.
On Wed, 23 Oct 2002 michael@albog.dk wrote:
> Alan Cox have recommended my to forward my questions to you, hope you will help
> me!
>
> Read the following:
>
> ----- Videresendt meddelelse fra michael@albog.dk -----
> Dato: Wed, 23 Oct 2002 09:42:51 +0200
> Fra: michael@albog.dk
> Reply-To: michael@albog.dk
> Emne: Question about kernel and IPv6...
> Til: Alan Cox <alan@redhat.com>
>
> To Alan Cox!
>
> Hi Alan,
>
> I am working on a master thesis called “Internet Protocol version 6”.
>
> In the project I have to setup a test-network for analyzing the RIPng protocol
> etc. I am using four normal Intel PC’s each running Debian Linux, with a custom
> compiled kernel 2.4.19 downloaded from www.kernel.org. Two of the PC’s are
> running as a software-based router (using Zebra 0.92a-6), and the other is
> separately working as a client and server, respectively connect to router1 and
> router2.
>
> My problem is when I try to send an ICMPv6 request via the WAN-link (router1
> and router2) from the client, I not getting any response from server. The
> problem only appears when I try making a connection via the WAN-link, and not
> from router1<->server and router2<->client.
>
> My question is:
>
> - Could a problem be due to a wrong kernel-configuration? (I can attach
> the .config if you are interested).
>
> - What "kernel mechanism" is responsible for routing/transporting data between
> two interfaces? (I think that’s the problem in router1 and router2. Zebra is
> only exchanging the "IPv6 kernel routing information" between router1 and
> router2, and it is working fine).
>
> - What kernel version have most IPv6 features build-in ?? (Maybe a feature is
> missing in 2.4.19. I have read an article about patching the kernel:
> http://project6.ferrara.linux.it/papers/best_ipv6_support_4_linux/best_ipv6_supp
> ort_4_linux.html, it is necessary?).
>
> I hope you understand what my main problem is – English is not my primary
> language.
>
> I have got many information from mailinglists, messagesboards and homepages,
> but the main problem is, that those information is conflicting. That’s why I
> writing to the Linux Guru him self.
>
> Btw. You are doing a very good job with the Linux kernel!
>
> Best regards,
>
> Michael Olsen
>
> Atkins Danmark A/S, Tele
> Pilestræde 58
> DK-1112 København K
> Telefon: +45 8233 9154
> Fax: +45 8233 9017
>
> ----- Slut af videresendt meddelelse -----
>
>
--
Pekka Savola "Tell me of difficulties surmounted,
Netcore Oy not those you stumble over and fall"
Systems. Networks. Security. -- Robert Jordan: A Crown of Swords
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Fwd: Question about kernel and IPv6...
2002-10-23 8:05 Fwd: Question about kernel and IPv6 michael
2002-10-23 8:09 ` Pekka Savola
@ 2002-10-23 11:29 ` Mauro Tortonesi
1 sibling, 0 replies; 3+ messages in thread
From: Mauro Tortonesi @ 2002-10-23 11:29 UTC (permalink / raw)
To: michael; +Cc: netdev
On Wed, 23 Oct 2002 michael@albog.dk wrote:
> - What kernel version have most IPv6 features build-in ?? (Maybe a feature is
> missing in 2.4.19. I have read an article about patching the kernel:
> http://project6.ferrara.linux.it/papers/best_ipv6_support_4_linux/best_ipv6_supp
> ort_4_linux.html, it is necessary?).
micheal, that article is a bit obsolete. i will update it as soon as
possible, but until next week there is no chance i can do it (friday i
will get my MS degree in electronic engineering and i am __very__ busy
now).
however, the choice of the kernel to use is quite simple: if you need the
advanced features in usagi kernel (e.g. ISATAP, drop packets with fake
ipv4-mapped address, RFC 3041 support, anycast support, allow default
route when forwarding is enabled, Node Information Queries, IPSEC, MIPv6,
IPv6-in-IPv6 tunneling) you should install the usagi kit. if not, use the
standard vanilla kernel.
p.s. i wouldn't spend too much time working on ripng. if you wish
to analyze routing protocols, perhaps OSPF and BGP4+ would be
better choices.
--
Aequam memento rebus in arduis servare mentem...
Mauro Tortonesi mauro@ferrara.linux.it
mauro.tortonesi@ing.unife.it
Ferrara Linux Users Group http://www.ferrara.linux.it
Project6 - IPv6 for Linux http://project6.ferrara.linux.it
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-10-23 8:05 Fwd: Question about kernel and IPv6 michael
2002-10-23 8:09 ` Pekka Savola
2002-10-23 11:29 ` Mauro Tortonesi
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